What happens if there are deficiencies in the priority papers?

If priority papers are found to be deficient in material respects, such as failure to include the correct certified copy, applicants should ensure that there is sufficient time to remedy any defects. The MPEP advises: “Frequently, priority papers are found to be deficient in material respects, such as for example, the failure to include the correct certified copy, and applicants should ensure that there is sufficient time to remedy any defects.” It’s recommended to file priority papers as early as possible to allow time for correction if needed.